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212331003222 = 23137934458131
BaseRepresentation
bin1100010110111111101…
…0011111110101010110
3202022001201020112220110
43011233322133311112
511434323214100342
6241313222143450
721224521514502
oct3055772376526
9668051215813
10212331003222
118205a352458
1235199281b86
131703ac182a0
14a3c3a63302
1557cacc9c9c
hex316fe9fd56

212331003222 has 32 divisors (see below), whose sum is σ = 463117294080. Its totient is φ = 64505619360.

The previous prime is 212331003197. The next prime is 212331003223. The reversal of 212331003222 is 222300133212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212331003223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17222904 + ... + 17235227.

It is an arithmetic number, because the mean of its divisors is an integer number (14472415440).

Almost surely, 2212331003222 is an apocalyptic number.

212331003222 is an abundant number, since it is smaller than the sum of its proper divisors (250786290858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212331003222 is a wasteful number, since it uses less digits than its factorization.

212331003222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34458228.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212331003222 its reverse (222300133212), we get a palindrome (434631136434).

The spelling of 212331003222 in words is "two hundred twelve billion, three hundred thirty-one million, three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 1027 2054 3081 6162 34458131 68916262 103374393 206748786 447955703 895911406 1343867109 2687734218 2722192349 5444384698 8166577047 16333154094 35388500537 70777001074 106165501611 212331003222